Does your child: ​Not respond to their name by 12 months of age Not point at objects to show interest (like an airplane by 14 months) Not play "pretend" games by 18 monthsAvoid eye contact and want to be aloneHave trouble understanding other people's feelingsHave delayed speech and language skillsRepeat words or phrases over and over (Echolalia)Get upset by minor changesHave obsessive interestsFlap their hands, rock their body, or spin in circlesHave unusual reactions to the way things sound, smell, taste, look, or feel